In this article, we study an orthogonal frequency division multiplexing‐based underlay
cognitive two‐way amplify‐and‐forward (AF) relay network. We assume a system model …

Several works have studied relaying in cognitive radio networks in terms of outage
probability. The main challenge in such works is finding a mathematical expression for this …

The relentlessly increasing number of small-sized devices with limited powering and
computational capabilities requires the adoption of new approaches to spectrum access. In …

THIS thesis presents my Ph. D. research study on dynamic resource allocation and channel
assembling techniques in spectrum sharing wireless networks. The work has been done …